Improvement in heel-burnishing machines



R C. LAMBERT.

Improvement in Heel Burnishing Machines Patented August 8, 18714 CWW 4173 :61

UNITED STATES PATENT OFFICE.

RICHARD O. LAMBERT, OF QUINCY, MASSACHUSETTS.

IMPROVEMENT IN HEEL-BURNISHING MACHINES.

Specification forming part of Letters Patent No. 117,955, dated August8, 1871.

To all whom it may concern:

Be it known that I, RICHARD O. LAMBERT, of

Quincy, in the county of Norfolk and State of Massachusetts, haveinvented an Improved HeeL Burnishing Machine; and I do hereby declarethat the following, taken in connection with the drawing whichaccompanies and formspart of this specification, is adescription of myinvention, sufficient to enable those skilled in the art to practice it.

My invention relates to an improved organization of machines forburnishing the heels of boots and shoes. In my machine I employ, incombination with a boot-holdin g or j ackin g mechanism having apositive reciprocating semi-rotative or vibratory movement, a polishingor burnishing-tool, which is pressed down against the vibratingheel-edge, and which is so hung-as to be capable of a free movement tobring all parts of the heel-edge to its action. My invention consists ina heel-burnishing machine in which the boot or shoe, being jacked to aframe that has a semi-rotative movement, has its heel subjected to theaction of a burnishing-tool which is attached to a lever, pivoted by auniversal joint, so that the burnishing-tool can be tipped in anydirection to bring all parts of the heeledge equally to the action ofthe burnisher, and, in the combination with such an arrangement, of aheel-plate against which the heel-tread or face is clamped, such plateprojecting beyond the tread and the burnishing-tool being so formed asto polish and condense the heel-edge up to and against the plate.

The drawing represents a machine embodying the improvement. A shows themachine in rear elevation. B is a plan of it. O is an end eleva tion. Dis a front view of the boot-holding frame and burnisher-lever.

a denotes the main frame, through the stand ard b of which extends ashaft, 0. On the front end of this shaft is the jack-frame (Z, to whichthe boot or shoe is fastened, the heel-tread being clamped against aplate, 0, and the inner surface of the boot or shoe at the heel beingheld by a screw, f. On the opposite end of this shaft 0 is a gear, g,and to this gear a reciprocating rotative movement is imparted by areciprocating gear-bar or rack-bar, h, driven by any suitable mechanism.Over the jackframe (1 extends a lever, i, to which is fastened theburnisher or burnishing-tool k, this tool being made with apolishing-face corresponding to the edge of the heel, or of such formthat, as the heel passes under it, it can be brought into contact withevery part of the edge-surface of the heel. The tread of the heel isclamped against the vertical plate (2, and the inner corn er of theburnisher can reach into the angle of the heel and plate, therebypolishin g and solidifying the leather to the extreme face of theheel-tread, and preventing the formation of any bur at the corner orangle of the edge and tread-face.

The pressureof the burnishing-tool is produced by hand manipulation ofthe lever t,- and to enable the tool to be tipped so as to conform to orreach the whole surface to be polished and condensed I pivot the leveron a compound universal joint, the operator being thereby enabled toapply whatever pressure may be necessary on different parts of aheel-edge, according to the varying quality of the stock and the varyingcondition of the surfaces as left by the heel-trimmin g mechanism. Thereciprocating movement of the jack is sufficient to bring the wholelength of heel-edge under and into contact with the burnisher; and, tovary the extent of such recip rocation for different sizes of heels, thethrow of the gear-bar h may be variably adjusted.

I do not claim in this application the reciproeating jack for holdingthe boot and shoe and presenting the heel to the action of aburnishingtool, as that is claimed by me in a pending application filedMay 27, 1871.

I claim- 1. In combination with a reciprocating boot or shoe-holdin gjack, a burnishing-tool attached to a hand-operated lever pivoted by auniversal joint, substantially as described.

2. The heel-plate 0 against which the heel-tread or face is clamped,such plate projecting beyond the tread and the burnishingrtool beingmade at its inner corner to fit into the angle formed between the heeland plate to polish and condense the heel-edge up to and against theplate, substantially as described.

RICHARD O. LAMBERT. Witnesses:

FRANCIS GOULD,

M. W. FROTHINGHAM.

